EP 0326546 B1 19910508 - THERMALLY FORMED STACKED DISC FILTER
Title (en)
THERMALLY FORMED STACKED DISC FILTER
Publication
Application
Priority
US 90844286 A 19860917
Abstract (en)
[origin: WO8801898A1] A fluid filter consists of a stack of discs (24) which are formed from an air laid, nonwoven batt of randomly arrayed fibers. The batt includes a thermoplastic component to give the discs (24) a self-supporting stiffness when molded. Each of the discs (24) have radially extending contaminant collecting surfaces (30, 32) on the opposite sides thereof, and each have axially offset portions (38, 40) circumscribing the inner and outer diameters of the discs (24). Alternate discs (24) in the stack are inverted, so that the axially offset portions (38, 40) on the inner and outer circumferences of the discs (24) are brought into registration with one another. Accordingly, radially extending flow paths are defined between the discs to communicate fluid toward and away from the contaminant collecting surfaces. Ribs (42) are provided on the contaminant collecting surfaces (34, 36) to maintain separation of the discs (24) under dynamic flow conditions.
IPC 1-7
IPC 8 full level
B01D 29/39 (2006.01); B01D 29/41 (2006.01); B01D 46/24 (2006.01)
CPC (source: EP KR US)
B01D 29/39 (2013.01 - KR); B01D 29/41 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE DE FR GB IT NL SE
DOCDB simple family (publication)
WO 8801898 A1 19880324; AR 241691 A1 19921130; BR 8707815 A 19891003; CA 1322973 C 19931012; EP 0326546 A1 19890809; EP 0326546 B1 19910508; ES 2006787 A6 19890516; JP H02500493 A 19900222; KR 880701578 A 19881103; KR 950003407 B1 19950412; MX 159944 A 19891009; US 4732677 A 19880322; ZA 876250 B 19880301
DOCDB simple family (application)
US 8701615 W 19870728; AR 30875387 A 19870916; BR 8707815 A 19870728; CA 543787 A 19870805; EP 87904626 A 19870728; ES 8702660 A 19870915; JP 50429287 A 19870728; KR 880700521 A 19880511; MX 767987 A 19870807; US 90844286 A 19860917; ZA 876250 A 19870824